Why is the fan running in my Jaguar?

Lift off the engine cover & touch one of the charge coolers, it should be noticeably cooler than the alloy intake tube that runs between the charge coolers, if it’s the same temp or warmer then i’d be looking at the intercooler coolant circuit and the electric pump. But the thermostat should also be on the list.

What to do if your cooling fan won’t turn on?

Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.

What causes a coolant leak in a Jaguar?

A coolant leak is a typical issue that can plague your car and cause all sorts of problems throughout your Jaguar if left unattended so it’s important to seek out the help of a Jaguar mechanic as soon as you begin to notice a potential leak.

Why does my car have a radiator fan?

You probably already know the purpose of the radiator and the cooling system in your car. When you are driving fast, the wind is passing through the radiator to cool the coolant down without issues, but when you are driving slow, there is no wind pushed through the radiator. This is why we use a radiator fan.

Why is my engine fan running all the time?

During 2 hours of driving my engine fan was running the entire time and that obviously isn’t right! It started off ok but once the engine temp increased the fan started. Coolant level is fine, temp guage read as normal throughout the journey and yet the fan wouldn’t stop.

What does it mean when your radiator fan is not working?

This is what we call a blown fuse. A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan.

How to check engine temp on Jaguar X350?

TonyXJR bought a thermostat kit and changed it quite successfully. Also 57jam89 in the S Type forum describes a process for checking engine temp using the button on the indicator stalk, i’m going to see if that works on the X350. After i’ve checked I have a button on my indicator stalk!!!!!

Why is my reverse sensor on my X type not working?

My factory fitted reverse sensors on my 2006 X type ds estate have packed up. The continuous mode warns me on turning ign that it’s not working & then goes off.I’ve had Northfield Garage (Bham) put the diagnostic box on to conf a fault.

Why is my reverse sensor on my Jaguar not working?

If the reverse sensors are clicking when you put your ear right up to them then suspect the module.If you know a garage selling a similar age car they might allow you to swap the modules over to see if it is the module or not which would only rake a minute to try. What is your vin number (last 6 digits) and do you also have front parking sensors?

Why does my car keep running after I Turn Off the ignition?

Running-on is when the engine continues to turn after you’ve switched off the ignition because the fuel /air mixture is being ignited by a hot-spot in the combustion chamber.

How do you connect a bleed valve to an ignition?

Crimp a suitable connector to a length of wire and push it on to the bleed valve. Run the wire from the valve to an ignition-controlled live feed. Connect it in. Ask a friend to turn on the ignition, and listen to the valve —you should hear a distinct click as the ignition is turned on.

Can a Jaguar XJ-S have a cooling system?

In theory, leak sealers will not solidify until they come in contact with air; however, there is always a little air inside a cooling system, and in the case of the XJ-S there is apparently enough to cause trouble. Please, do not use any leak-sealing substance within the V12 cooling system.

Why do I keep losing coolant on my Jaguar?

Also then found that the water pump was damaged and the thermostat housing was cracked, both losing coolant. One these were both replaced and the coolant could settle after the initial refilling, this has been fine ever since. It can also be a bit of a pain to bleed the system properly.

Why are the cooling fans not working on my car?

1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

Why is my Jaguar radiator fan not running?

Radiator fan should run when the compressor runs. The same relay activates both, separate from the cooling system relay, at least if Jaguar uses the same system as other makers. If your AC is not up to pressure or is over pressuring then neither the compressor nor the radiator ran will run.

What’s the life of a Jaguar XF cooling fan?

I know that the usual life expectancy of a similar fan on a Rover 75 is 60,000 to 70,000 miles. Is this typical for Jaguar XF? So, if I get the cooling fan replaced / up and running will the air con spring back to life (assuming it is fully gassed and has no leaks?)

When to troubleshoot an electric car cooling fan?

On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Troubleshooting a cooling fan that doesn’t work can be a relatively straightforward task at times.

Why does my car fan come on when the engine is not running?

Consult your vehicle repair manual to check the required sensors and switches. On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components.

Where are the cooling fans located on a Jaguar X type?

Two variable speed electric cooling fans are housed in the cooling fan shroud for the cooling of the radiator. The speed of the electric cooling fans are adjusted by the cooling fan motor control module, which is controlled by the engine control module (ECM).

Why is my X type radiator fan over running?

X type radiator fan over running. X type radiator fan over running. H I have a problem with the fan running when engine is switched off. I have read yards and yards about this problem and am still in the dark as to what might cause it and am open to suggestions PLEASE! X type 2009 2.2 diesel sovereign.

When does a Jaguar X type radiator fan over running?

If the PWM signal from the ECM to the cooling fan control module is between 7% and 95% the cooling fan control module will operate the cooling fans at the required speed. If the PWM signal from the ECM to the cooling fan control module is below 3% and above 95% the cooling fan control module will operate the cooling fans at maximum speed.

When does the radiator fan run at full speed?

The cooling fans are operated at slow speed when the engine coolant temperature is at 95°C (203°F) and are operated at full speed when the engine coolant temperature is at 105°C (221°F). A coolant temperature between these temperatures will cause the cooling fans to be operated at a speed which is proportional to the engine coolant temperature.

What are the signs of a bad cooling fan?

Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

How often does a car cooling fan stay on?

Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

What causes a car to shut down while driving?

If the fuel filter is clogged, the fuel entering the system will be insufficient and the engine will shut down. Fortunately, it is pretty easy for you to replace a fuel filter. The third and final thing that could go wrong with your fuel system is a leaking fuel supply line.

What causes a car cooling fan to run continuously?

2. A cooling fan temperature switch (or sensor, in some vehicles) can also get stuck, which may cause the fan to run continuously any time you turn the ignition key on or start the engine. Troubleshoot the switch. 3.

What kind of transmission does a Jaguar XJ6 have?

Jaguar XJ6 Service and Repair Manual 3261 Jaguar XJ6 Models covered Jaguar XJ6 models with 3.2 litre (3239 cc), 3.6 litre (3590 cc) & 4.0 litre (3980 cc) six-cylinder in-line dohc petrol engines and automatic transmission

How to request new parts for a Jaguar?

Complete the Jaguar Parts Request Form: Can’t find the new or used Jaguar parts you need? Complete the Jaguar Parts Request Form:

Where can I download wiring diagram for Jaguar fan relay?

Hi Fernando.isac, Welcome to the forum. You can download the wiring diagram from http://www.jagrepair.com/JaguarXTypeElectricalOBDIIcodes.htm. Go to Fig 03.2 and you will see the connections and associated units applicable to your fans.

Why is my Jaguar A / C not blowing hot air?

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What kind of engine does a Jaguar XJ6 have?

Models covered Jaguar XJ6 models with 3.2 litre (3239 cc), 3.6 litre (3590 cc) & 4.0 litre (3980 cc) six-cylinder in-line dohc petrol engines and automatic transmission

Where is the transmission on a Jaguar XJ6?

Transmissions are a four-speed automatic equipped with a lock-up torque converter. The transmission is mounted to the back of the engine, and power is transmitted to the fully independent rear axle through a two-piece propshaft.

Models covered Jaguar XJ6 models with 3.2 litre (3239 cc), 3.6 litre (3590 cc) & 4.0 litre (3980 cc) six-cylinder in-line dohc petrol engines and automatic transmission

Can a car fan still run after the engine is turned off?

Then you notice the engine cooling fan is still running even though the car is turned off. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn off. This is normal in many vehicles, such as BMW or Mercedes-Benz.

What happens if you turn off the electric fan on a Jetta?

Electrical Fan continues running after car turned off. Draines battery. Electrical Fan continues running after car turned off. Draines battery. on Volkswagen Jetta Good news! We found 31 RepairPal Certified shops near you.

Why do I need to keep coolant in my Jaguar?

In order to get the most out of your Jaguar it’s important that you keep everything inside and outside properly serviced. This includes the vehicle’s coolant, which is typically responsible for keeping the engine from overheating and ensuring that everything is performing to the high standard set by Jaguar.

What happens if you blow the head gasket on a Jaguar?

A blown head gasket can lead to devastating issues for your Jaguar if you don’t address the problem right away. A blown head gasket can lead to oil and coolant mixing and can also cause a complete loss of compression in your vehicle’s engine.

How to diagnose a heater leak in a Jaguar?

1. Unbolt the Coolant/Water Expansion Tank, set it aside so it doesn’t block access to the Heater Valve. 2. Loosen the bolt that secures the Heater Valve to the car. 3. Rotate the Heater Valve to get access to its connector. Procedure A (This one is messy. We recommend that you do Procedure B instead.):

Why is the solenoid on my Jaguar heater not working?

It is an active low circuit, so when the DCCV sees Ground at either the LH and/or RH pin, the respective solenoid within the DCCV activates. Case 1: Temperature setting “Lo” = CCM output ON (grounded) = solenoid ENERGZIED = solenoid valve CLOSED = coolant flow to heater core impeded = heater core NOT HOT when A/C is ON.

What causes a Jaguar V-12 engine to overheat?

In the Jaguar V-12, a more common symptom of an overheated engine is a dropped valve seat. Since the heads are aluminum, the valve seats are steel rings that are pressed into the aluminum.

Is there a leak in the XJ-S cooling system?

In theory, leak sealers will not solidify until they come in contact with air; however, there is always a little air INSIDE a cooling system, and in the case of the XJ-S there is apparently enough to cause trouble. Please, do not use any leak-sealing substance within the V-12 cooling system.

What kind of aircon system does a Jaguar XJ have?

The following refers to aircon systems fitted to Jaguar XJS, XJ Series 1,2,3 and will have some relevance to later cars. See also our R134a conversion mythbuster.

What kind of radiator does a XJ-S have?

Although it is probable two thermostats were used to reduce piping, they do provide some redundancy. John’s Cars offers “super-duty” radiators to fit the XJ-S, including a 5-row unit for the pre-H.E. car.

How do you remove the radiator on a Jaguar XJ?

Use the drain cock to neatly drain the coolant into a container, and then remove the radiator hose to flush water through. Both the official Jaguar manual and the Haynes manual state that removing the radiator requires discharging the air conditioner freon circuit. They lie. In fact, as Jim Isbell reports,

What causes a Jaguar climate control to fail?

When the Heater Valve becomes faulty, it begins to draw too much current, which causes the Climate Control Module to become damaged (i.e. failure due to over-current condition). 4. Harness/wiring problems between the Heater Valve and Climate Control Module. 5. Failure at one or more air mixing/blending flaps. 6. Or a combination of the above cases.

Where is the a / C pressure sensor on a Jaguar?

A/C pressure sensor/switch: 2. Check the fuse for the Heater Valve. It is Fuse 32 (10 amps) in the Front Power Distribution Fuse Box, located in the engine compartment. This fuse is hot +12 volts at all times, and also feeds the Auxiliary Coolant Pump Relay (4.0L models) and A/C Clutch Relay.

How long does a car cooling fan run after shutting off the engine?

Rest assured—this is in fact normal operation. The after-running of the cooling fans is deliberate and can sometimes last up to 16 minutes after switching the engine off.

Why does my TDI cooling fan run after shutting the engine off?

Since the vehicle does not know you are only going on a short trip, it may start this process just before you arrive at your destination and now that engine is switched off and the vehicle is stationary the system will self-activate the cooling fans at high speed in an attempt to bring down those high temperatures now trapped below the hood.

The following refers to aircon systems fitted to Jaguar XJS, XJ Series 1,2,3 and will have some relevance to later cars. See also our R134a conversion mythbuster.

Where is the hot water heater on a Jaguar?

Replacement is very difficult! Situated in the engine bay, close to the bulkhead (firewall) with two coolant pipes and a small vacuum pipe, this shuts off hot water to the heater matrix when max cold is demanded. It can become stuck open or shut but is fairly easily replaced.

Why is my Jaguar XJ8 heater not working?

While there are a variety of reasons your Jaguar XJ8 heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.

How do you add a toggle switch to a radiator fan?

Slide heat shrink over them and use the heat gun over the heat shrinks. Use a power drill to make holes at a location that you think is suitable for the switch. Now manually screw in a toggle switch. Attach the electrical connectors to the switch. Now test the switch by reconnecting the battery.

Can a manual switch be added to a radiator fan?

Adding a manual switch to an electric radiator fan is an economical way of keeping your car cool and in good condition. If you’re rusty or new to this automotive element, here’s a short rundown of how radiator fans work.

How does an electric radiator fan work in a car?

If you’re rusty or new to this automotive element, here’s a short rundown of how radiator fans work. Electric radiator fans operate when radiator temperature rises to preset heat range. When the radiator temperature lowers to a preset level, the electric fan turns off.

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